新型燃料電池催化劑的制備及性能測(cè)試研究
發(fā)布時(shí)間:2018-12-17 16:01
【摘要】:以預(yù)處理的活性炭為載體,采用浸漬還原法制備出Pd基陽極催化劑,主要考察了活性炭預(yù)處理、金屬前驅(qū)體加入順序?qū)Υ呋瘎┑挠绊�。結(jié)果表明:通過利用HNO_3溶液對(duì)活性炭進(jìn)行處理,可以提高催化劑的負(fù)載量,在電化學(xué)測(cè)試中C2H5OH氧化峰值是未處理活性炭為載體催化劑的2.04倍。此方案可成功合成出粒徑達(dá)到3.4nm的催化劑。另外利用分布還原法制備的催化劑,可以實(shí)現(xiàn)活性炭上催化劑的高負(fù)載量和更小的粒徑尺寸。
[Abstract]:The Pd based anode catalyst was prepared by impregnation reduction with the pre-treated activated carbon as the carrier. The influence of the pretreatment of activated carbon and the addition order of metal precursor on the catalyst was investigated. The results showed that the amount of catalyst supported on activated carbon could be increased by using HNO_3 solution. The peak value of C2H5OH oxidation was 2.04 times of that of untreated activated carbon. The catalyst with particle size up to 3.4nm can be successfully synthesized by this scheme. In addition, the catalyst prepared by the distributed reduction method can achieve the high loading amount and smaller particle size of the catalyst on the activated carbon.
【作者單位】: 天津工業(yè)大學(xué)分離膜與膜過程國家重點(diǎn)實(shí)驗(yàn)室;天津工業(yè)大學(xué)環(huán)境與化學(xué)工程學(xué)院;
【基金】:天津市自然科學(xué)基金重點(diǎn)項(xiàng)目(12JCZDJC28400) 天津市科技計(jì)劃項(xiàng)目(15PTSYJC00230) 國家自然科學(xué)基金(21476172和21206124)
【分類號(hào)】:TM911.4;TQ426
本文編號(hào):2384423
[Abstract]:The Pd based anode catalyst was prepared by impregnation reduction with the pre-treated activated carbon as the carrier. The influence of the pretreatment of activated carbon and the addition order of metal precursor on the catalyst was investigated. The results showed that the amount of catalyst supported on activated carbon could be increased by using HNO_3 solution. The peak value of C2H5OH oxidation was 2.04 times of that of untreated activated carbon. The catalyst with particle size up to 3.4nm can be successfully synthesized by this scheme. In addition, the catalyst prepared by the distributed reduction method can achieve the high loading amount and smaller particle size of the catalyst on the activated carbon.
【作者單位】: 天津工業(yè)大學(xué)分離膜與膜過程國家重點(diǎn)實(shí)驗(yàn)室;天津工業(yè)大學(xué)環(huán)境與化學(xué)工程學(xué)院;
【基金】:天津市自然科學(xué)基金重點(diǎn)項(xiàng)目(12JCZDJC28400) 天津市科技計(jì)劃項(xiàng)目(15PTSYJC00230) 國家自然科學(xué)基金(21476172和21206124)
【分類號(hào)】:TM911.4;TQ426
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